diff --git a/requirements.txt b/requirements.txt
index 619fd87..79c8b4c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-certifi==2018.4.16
+certifi==2023.7.22
 chardet==3.0.4
 future==0.16.0
 gym==0.10.5